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Keywords: stress tensor
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Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-004
... mines, at depths ranging from 600 meters down to 2,000 meters below surface. Stress measurements were carried out using standard CSIR triaxial 'hollow-inclusion' and biaxial 'doorstopper-type' measurement cells. In-situ 3D stress tensors were computed. Increasing with the depth of measurement...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-016
.... As multivariate statistics are widely used to analyse stress tensor components, here we investigate the use of three widely used scalar-valued scatter measures in multivariate statistics- namely, generalised variance, total variation and effective variance - to help identify a suitable scalar-valued measure...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, May 10–12, 2016
Paper Number: ISRM-ISRS-2016-027
... Upstream Oil & Gas inverse problem borehole Reservoir Characterization Corthesy anisotropic rock stress tensor deformability parameter Raasakka doorstopper technique Symposium strain recovery curve Rock stress international symposium reservoir geomechanics stress component...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-120
...-dimensional Mohr diagram, one point, which is an intersection of three cycles (arcs) with direction angles θ1, θ2 and θ3, indicates a stress state in terms of shear and normal stresses, which represents four non-parallel planes due to the orthorhombic symmetry of the stress tensor. This implies that four...
Proceedings Papers

Paper presented at the ISRM International Symposium on In-Situ Rock Stress, August 25–27, 2010
Paper Number: ISRM-ISRS-2010-043
..." as the dipole shear is unaffected by borehole stress concentrations, and is, therefore, directly related to the relative deviatoric stress tensor described by the orientation of σ h and ellipsoid factor R . In contrast, the breakout orientation, controlled by borehole stresses, occurs at a location where...

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